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The Proposed Grand New York Hotel

The Great Markets of Paris

Business and Manufacturing Items

Preller's Patent Tanning Process

Ward's Universal Clothes Pin

Steam Boilers--Their Form Construction and Material

Number Four

Kips and Allmendinger's Oiler

Comstock's Lumber Wagon Rack

Editorial Summary

Answers to Correspondents

Recent American and Foreign Patents

Calkin's Axle Oiler

Relief of the City--Elevated Railroads


Wooden Pavements

American Standard for Bolts and Nuts

The Ascent of Mountains

The Mississippi Levees

Journal of the Paris Exposition

Patent Claims

How Russia Leather is Made

Dickey's Improved Charger


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May 25, 1867

Science for the Modern World